Check the listing for details. Windows Server 2016 License - 10 CALs User Access Pack. Condition: Brand New. Listed at 111.75 USD. User CALs are assigned to specific people who can access the server from any device. Device CALs are linked to a specific device, allowing multiple users to connect from the same device. Choose User CAL if your employees use several devices, and Device CAL if several people share the same workstation. CALs must be installed on a Remote Desktop Licensing Server through Remote Desktop Licensing Manager. You will need to enter the provided product keys into the Microsoft activation tool. The process requires administrator rights on the server and an Internet connection for activation with Microsoft. Absolutely ! Our licenses are 100% authentic and come from official Microsoft distribution channels. They guarantee the total compliance of your infrastruc.